What is the fastest way to travel from Shanghai Holiday Inn Zhenping to Pudong Airport?

You may take a taxi. The fare may be around CNY 180, and the trip takes about 50 to 60 minutes.

Or, take metro line 7 from Zhenping Road Station to Longyang Road Station for CNY 4 (about 40 minutes). Then, change to maglev train to PVG for CNY 50 (about 8 minutes).

You can choose the way you prefer! Have a good trip! :)

Thank you for your prompt response.

Lastly, Is there any age limit to travel in Maglev Train as I might be travelling with my mother and her age is around 65?

As I know, there is no age limitation. People above 65 years old can also take it. Don't worry.